Moore has been accused of initiating a sexual encounter with a woman in 1979 when he was 32 and she was 14. Other women have reported that Moore had inappropriate sexual conduct with them when they were teens, according to The Washington Post.

Republicans will face questions about Roy Moore if he is elected, the board wrote.

"If Mr. Moore is a senator, the media will hang him around the neck of every Republican candidate as Democrats try to drive turnout among women and dispirit GOP voters," the board wrote.

The board said that it found the women's claims "persuasive," and it called on Alabama voters to consider that "politics is about more than policy."

"They should consider that there are strong moral and practical reasons to reject Mr. Moore," the board wrote.

President Donald Trump's decision to support Moore was "unfortunate," according to the board.

"But victory could come at a considerable cost. The Senate would be obliged to seat him, and the allegations would surely be referred immediately to the Ethics Committee, which is already vetting the sexual misconduct of Minnesota Democrat Al Franken," the board wrote.

The board noted that Alabama voters would be voting for the Senate seat again in 2020, because this election is to fill out the Senate term after it was vacated by Jeff Sessions when he became attorney general.

"The winner next week will have to run again in 2020 for a full six-year term. Alabama Republicans will get another chance at Mr. Jones, but if they elect Mr. Moore, they might be stuck with him for a very long time," the board wrote.

One of Moore's accusers, Leigh Corfman, was included Wednesday in Time magazine's "Person of the Year" story on sexual harassment.